2011220320320 has 168 divisors, whose sum is σ = 6918535840320. Its totient is φ = 536265262080.

The previous prime is 2011220320313. The next prime is 2011220320367. The reversal of 2011220320320 is 230230221102.

2011220320320 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 2 + 20 + 320 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2011220320293 and 2011220320302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29511885 + ... + 29579955.

Almost surely, 2^{2011220320320} is an apocalyptic number.

2011220320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011220320320 is an abundant number, since it is smaller than the sum of its proper divisors (4907315520000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011220320320 is a wasteful number, since it uses less digits than its factorization.

2011220320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78353 (or 78340 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2011220320320 its reverse (230230221102), we get a palindrome (2241450541422).

The spelling of 2011220320320 in words is "two trillion, eleven billion, two hundred twenty million, three hundred twenty thousand, three hundred twenty".